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Client Retention Calculator — Retention Rate & Revenue Impact

Measure client retention rate and estimate the revenue impact of keeping more clients.

Clients who visited in the last period

Of those, how many came back

How We Calculate This

Calculates retention rate as a percentage and estimates the revenue impact of lost clients and potential improvement.

The formula

Retention rate = (Returning clients / Total clients) x 100

Lost revenue = Lost clients x Average spend x Visits per year

Frequently Asked Questions

Last updated: February 2026

All calculations are estimates. Always perform a strand test before chemical services.